Tomorrow (Thursday 10 February) sees the start of the second official F1 test at Jerez in Spain, a faster circuit than Valencia which hosted the first outing. Everyone except Hispania will have new cars on test. Already we have seen some interesting solutions on some of the cars as well as some high degradation on the new Pirelli tyres. Valencia was mainly about bedding in new technology, in Jerez we will start to see some performance. In this exclusive video, which I shot on Monday at Williams, technical director Sam Michael talks about the tyre degradation, the other cars and More…